MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module

The MQ 2 Smoke Detection Sensor/MQ2 Gas Sensor is a popular gas detection module used in various electronics projects and applications.

Here’s an overview and some details about the MQ 2 Smoke Detection Sensor:

• Purpose: The MQ-2 is designed to detect various gases, including LPG (liquefied petroleum gas), butane, propane, methane, alcohol, hydrogen, and smoke.
• Sensitivity: It has a high sensitivity to flammable gases. The sensor can work at temperatures ranging from -20 to 50°C.
• Principle: It works on the principle that gases will cause the resistance of the sensing material to change. The sensor uses a tin dioxide (SnO2) sensitive layer whose resistance changes depending on the concentration of gases in the environment.

Features of MQ2 Gas Sensor:

• Analog and Digital Output: Typically, the MQ-2 sensor module provides both analog and digital outputs. The analog output can be used for reading the concentration of gases, while the digital output can be used as a trigger when gas concentration reaches a certain level.
• Adjustable Sensitivity: Many MQ-2 modules come with a built-in potentiometer that allows users to adjust the sensor’s sensitivity.
• Low Cost: The MQ-2 is relatively inexpensive, making it a popular choice for DIY projects and various applications. Versatility: Because it can detect a variety of gases, it’s a versatile choice for many different applications.

Technical Details of MQ2 Gas Sensor

• Operating Voltage (VDC): 5
• Analog Output Voltage: 0V to 5V
• Digital Output Voltage : 0V or 5V (TTL Logic)

Physical Attributes of MQ 2 Smoke Detection Sensor

• Length * Width * Height (mm): 36 x 20 x 21
• Weight (gm): 7

Package Includes

• 1 x MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module